75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
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/*
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* Copyright (c) 2018 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* Samsung TN debugging code
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/notifier.h>
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#include <linux/sec_debug.h>
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#include <linux/debug-snapshot.h>
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#ifndef CONFIG_SEC_KEY_NOTIFIER
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#include <linux/gpio_keys.h>
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#else
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#include <linux/input.h>
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#include "sec_key_notifier.h"
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#endif
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#ifdef CONFIG_SEC_KEY_NOTIFIER
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static unsigned int __crash_keys[] = {
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KEY_VOLUMEDOWN, KEY_VOLUMEUP, KEY_POWER
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};
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//static spinlock_t key_crash_lock;
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#endif
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static int sec_crash_key_check_keys(struct notifier_block *nb,
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unsigned long type, void *data)
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{
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#ifndef CONFIG_SEC_KEY_NOTIFIER
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unsigned int code = (unsigned int)type;
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int state = *(int *)data;
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#else
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struct sec_key_notifier_param *param = data;
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unsigned int code = param->keycode;
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int state = param->down;
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#endif
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dbg_snapshot_check_crash_key(code, state);
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return NOTIFY_DONE;
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}
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#ifndef CONFIG_SEC_KEY_NOTIFIER
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static struct notifier_block nb_gpio_keys = {
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.notifier_call = sec_crash_key_check_keys
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};
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#else
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static struct notifier_block seccmn_crash_key_notifier = {
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.notifier_call = sec_crash_key_check_keys
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};
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#endif
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int __init sec_crash_key_init(void)
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{
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//spin_lock_init(&key_crash_lock);
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/* only work when upload enabled*/
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if (sec_debug_enter_upload()) {
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#ifndef CONFIG_SEC_KEY_NOTIFIER
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register_gpio_keys_notifier(&nb_gpio_keys);
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#else
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sec_kn_register_notifier(&seccmn_crash_key_notifier,
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__crash_keys, ARRAY_SIZE(__crash_keys));
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#endif
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pr_info("%s: force upload key registered\n", __func__);
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}
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return 0;
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}
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early_initcall(sec_crash_key_init);
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